It's not that much and the 3.90 ratio would be better suited for the street
anyway (highway w/overdrive) as compared to 4.10's. The only reason I went
to the 4.10's was to keep my effective ratio somewhere reasonable for both
offroad and extended highway driving (3.65:1 is what I have with the 32"
tires and 4.10 gears).
However, a co-worker had 4.10's put in his '98 Sport 5.2L and changed the
tires to 245/60-15's. This puts his effective ration at close to 4.45:1
and his truck is quicker than sh** off the line and up to 115mph. (Gas
mileage suffered though) He hasn't tested it on the track but has already
run into two R/T's (No DML'ers...we checked) and has taken them without any
problems. All he has done is a modified TB, MSD, Jet-II, 180 T'Stat,
SplitFire Plugs, Headers, and a Flowmaster Cat-Back system...all simple
bolt-ons.
- Bernd
At 07:44 AM 04/27/2000 -0700, you wrote:
>Bernd, what would be the difference in the 3.92 versus the 4.10 in low end
>take off?
>
>-------------------------------------------
>Steven St.Laurent
>Test Engineer
>Test Branch, GSD, MCTSSA
>MARCORSYSCOM, USMC
>760-725-2506 (DSN 365-2506)
>Work:mailto:stlaurents@mctssa.usmc.mil
>Home:mailto:saint1958@home.com
> <<...>> <<...>>
>
> -----Original Message-----
>From: Bernd D. Ratsch [mailto:bernd@texas.net]
>Sent: Wednesday, April 26, 2000 10:18 PM
>To: dakota-truck@buffnet.net
>Subject: DML: RE: 3.92's vs. 4.10's
>
>Grab the 3.90's if you're going to be running street tires. The 4.10's are
>mainly for 1/4 mile or offroad use on these trucks.
>
>$0.02 since i've run 3.55, 3.90, and 4.10's.
>
>- Bernd
>
>
>-----Original Message-----
>From: owner-dakota-truck@buffnet.net
>[mailto:owner-dakota-truck@buffnet.net]On Behalf Of Chuck Robbins
>Sent: Wednesday, April 26, 2000 8:07 PM
>To: dakota-truck@buffnet.net
>Subject: DML: 3.92's vs. 4.10's
>
>
>Hi All,
>
> I know this has been discussed before, but ... I have the chance
>to get some new 3.92 gears for my Dakota. I was wondering how much
>of a butt-dyno difference there would be between the 3.92's and 4.10's.
>I don't do that much highway driving so I'm not concerned with the
>difference in highway rpm's. I'm just wondering if I should hold out
>for 4.10's or if the 3.92's are adequate for my straight line needs. I have
>3.55's now with a 5 speed. Thanks for any input.
>
>Chuck Robbins
>'99 Dakota Sport
>http://www.members.home.com/clrobbins/dakota.htm
>(totally redesigned main page)
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